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<blockquote data-quote="reipan" data-source="post: 7400061" data-attributes="member: 634700">This is my first post, I&#039;d appreciate any advice //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gifI have a 2009 Lancer Ralliart with the basic CD player (no sub or amp). It&#039;s pretty low end, 14W speakers (not sure what the HU spec is). I chose to upgade speakers first and installed Alpine SPR-60s in the rear doors and SPR-60Cs in the front doors/A pillar.I&#039;m now getting a buzz from the tweeters (front &amp;amp; rear) now which wasn&#039;t there with the stock speakers. old speakers 4ohm, new speakers are 4ohm. checked all wiring and connections for shorts loose connections. i get the buzz at any volume and with or without the engine running. Stock HU ground seems OK.I&#039;m an electrician but a car audio noob, not sure what is causing the buzzing.I plan to upgrade the HU to an Alpine iDA-X305S in a few months, will the problem go away with a decent HU? My stock HU is crap, is it to week to drive the new higher wattage speakers therefore causing the buzz?It&#039;s worse on certain songs and happens with CDs and ipod plugged into aux input. any help trouble shooting or advice would be greatly appreciated!Cheers</blockquote>

[QUOTE="reipan, post: 7400061, member: 634700"] This is my first post, I'd appreciate any advice [IMG]//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif[/IMG] I have a 2009 Lancer Ralliart with the basic CD player (no sub or amp). It's pretty low end, 14W speakers (not sure what the HU spec is). I chose to upgade speakers first and installed Alpine SPR-60s in the rear doors and SPR-60Cs in the front doors/A pillar. I'm now getting a buzz from the tweeters (front & rear) now which wasn't there with the stock speakers. old speakers 4ohm, new speakers are 4ohm. checked all wiring and connections for shorts loose connections. i get the buzz at any volume and with or without the engine running. Stock HU ground seems OK. I'm an electrician but a car audio noob, not sure what is causing the buzzing. I plan to upgrade the HU to an Alpine iDA-X305S in a few months, will the problem go away with a decent HU? My stock HU is crap, is it to week to drive the new higher wattage speakers therefore causing the buzz? It's worse on certain songs and happens with CDs and ipod plugged into aux input. any help trouble shooting or advice would be greatly appreciated! Cheers [/QUOTE]

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